Colour

#FF4047

#FF4047
Red
Dark
Nearest: Crimson

#FF4047 is a red with RGB values 255, 64, 71 and HSL 358°, 100%, 63%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF4047#FF4047

HEX#FF4047

RGBrgb(255, 64, 71)

RGB (0–1)1, 0.251, 0.2784

RGB percentages100%, 25.1%, 27.8%

HSLhsl(357.8, 100%, 62.5%)

HSV / HSBhsv(357.8, 74.9%, 100%)

CMYK0%, 74.9%, 72.2%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,728,135

CSS custom property--colour: #FF4047;

Brightness & contrast

Relative luminance0.25382WCAG 2.x, 0 is black and 1 is white

Perceived brightness149.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.08:1

Contrast with white3.46:1WCAG normal text: Fail

Contrast with black6.08:1WCAG normal text: AA

Greyscale equivalent#696969

Inverted#00BFB8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7A7045no red cones; affects about 1% of men; ΔE 75.9 from the original

Deuteranopia#A99940no green cones; the most common form, about 1% of men; ΔE 76.5 from the original

Tritanopia#FF0045no blue cones; rare, and affects men and women equally; ΔE 11.6 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text3.46:1WCAG large text: AA

Contrast with black, large text6.08:1WCAG large text: AAA

Named colours

Crimson · ΔE 12.8 Tomato · ΔE 14.8 Firebrick · ΔE 23.9 Coral · ΔE 28 Red · ΔE 28.1 Orange red · ΔE 28.1

Nearest named CSS colourCrimson (#DC143C)ΔE 12.81, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#40FFF8

Analogous#FF40A7, #FF9840

Triadic#47FF40, #4047FF

Split complementary#40FF99, #40A6FF

Tetradic#A7FF40, #40FFF8, #9840FF

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FFFFFF

Lighter +30%#FFD9DA

Lighter +20%#FFA6A9

Lighter +10%#FF7378

Darker −10%#FF0D16

Darker −20%#D90008

Darker −30%#A60006

Darker −40%#730004

More saturated +25%#FF4047

Less saturated −25%#E7585D

Channel breakdown

R255

G64

B71

Red255 (100%)

Green64 (25.1%)

Blue71 (27.8%)

Hue357.8°

Saturation (HSL)100%

Lightness62.55%

Dominant channelRed

Hex per channelR FF · G 40 · B 47

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#FF4047

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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